A carbon powder crushing device with multi-stage filtering function

Abstract

The utility model discloses a carbon powder crushing device with multistage filtering function relates to carbon powder crushing technical field, and this device includes the conveying structure, crushing structure and grinding filter structure from top to bottom arrangement. The crushing structure is equipped with a pair of crushing roller by gear engagement transmission in, is used for the primary crushing of carbon block. The grinding filter structure contains the grinding assembly controlled by electromagnet and compression spring, can realize the periodic compression of upper grinding disc and separate, carries out intermittent precision grinding to carbon powder, and its below is equipped with multilayer vibration filter screen, and the carbon powder after grinding is graded screening through the filter screen of different mesh number. The utility model discloses the organic combination of multistage crushing, intermittent grinding and vibration filtering, effectively solved the problem of carbon powder particle uniformity difference, and simultaneously its anti -sticky coating and sealing design reduced material adhesion and leakage, significantly improved carbon powder quality, production efficiency and resource utilization.

Description

Technical Field

[0001] This utility model relates to the field of toner pulverization technology, specifically to a toner pulverization device with multi-stage filtration function. Background Technology

[0002] Toner pulverizers are used to crush carbon blocks or carbon materials into fine powder, and are widely used in industrial fields such as printer toner manufacturing. Existing toner pulverizers typically include a crushing structure and a filtering structure. The carbon blocks are initially crushed by crushing rollers, and then the crushed toner is screened through a filter sieve. However, this type of device lacks a fine grinding stage, resulting in uneven particle size and insufficient fineness in the crushed toner, potentially containing larger particles, which affects the quality and performance of the toner. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a toner pulverizing device with multi-stage filtration, which solves the problem that the lack of a fine grinding stage leads to uneven toner particle size and insufficient fineness after crushing, and the possibility of containing large particles, thus affecting the quality and performance of the toner.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a carbon powder pulverizing device with multi-stage filtration function, comprising a grinding and filtering structure, a crushing structure and a conveying structure from bottom to top, wherein the grinding and filtering structure includes a mounting frame, and inclined plates are spliced ​​together at the ports of the mounting frame, and grinding components are provided at the ports of the inclined plates.

[0005] The grinding assembly includes an entry ring, an upper grinding disc, and a lower grinding disc, arranged from top to bottom. The bottom of the entry ring has symmetrically formed mounting grooves, and an electromagnet is embedded in the mounting groove. The top of the upper grinding disc is symmetrically connected to a connecting rod, which is slidably sleeved on the bottom of the entry ring. The connecting rod is made of ferromagnetic material and can attract the electromagnet. The bottom of the connecting rod is symmetrically fixedly connected to a compression spring. The port of the mounting groove is symmetrically fixedly connected to a stop block, with one end of the stop block abutting the surface of the connecting rod. One end of the compression spring is fixedly connected to the stop block.

[0006] The entry ring is fixedly connected to the port of the inclined plate. A second rubber sleeve is provided between the entry ring and the upper grinding disc. An arc-shaped hollow plate is movably sleeved on the surface of the lower grinding disc. A drive motor is installed at the bottom of the arc-shaped hollow plate. A rotating rod is fixedly connected to the output end of the drive motor. One end of the rotating rod passes through the inner cavity of the arc-shaped hollow plate and is connected to the bottom of the lower grinding disc. The arc-shaped end in the middle of the lower grinding disc is located in the inner cavity of the upper grinding disc. The lower grinding disc is rotatably sleeved on the arc-shaped hollow plate through a rotating component.

[0007] Preferably, a slot for the movement of the filter screen is provided between the mounting frame and the arc-shaped hollow plate, and the filter screen is installed in the slot. A first rubber sleeve is provided between the filter screen and the slot.

[0008] Preferably, the crushing structure includes a frame fixedly connected to the top of the mounting frame, and crushing rollers are symmetrically arranged in the inner cavity of the frame. One end of each crushing roller is meshed with a gear, and a motor is fixedly connected to the side of the frame. The output end of the motor is fixedly connected to one end of any one of the crushing rollers.

[0009] Preferably, the conveying structure includes a conveying frame fixedly connected to the top of the frame, and a cover plate is rotatably connected to the top of the conveying frame.

[0010] Preferably, the filter screen includes a mounting plate, with spring seats symmetrically arranged at the bottom of the mounting plate and fixedly arranged in the groove. The inner cavity of the mounting plate is provided with filter screens in upper and lower layers, and each layer of filter screens has a sliding plate at one end. Vibration pumps are symmetrically arranged on the side of the mounting plate. The mounting plate is inclined and one end extends to the outside of the mounting frame.

[0011] Preferably, the surfaces of the grinding and filtering structure, the crushing structure, and the conveying structure are all coated with a coating, which is any one of an organosilicon coating, a fluorine-containing nano-coating, and a superhydrophobic coating.

[0012] This invention provides a toner pulverizing device with multi-stage filtration. Compared with the prior art, it has the following advantages: 1. This toner pulverizer with multi-stage filtration achieves fine processing of toner through the grinding components. It can periodically adjust the grinding gap and repeatedly squeeze and shear the toner to ensure highly uniform toner particle size, effectively eliminating the problem of large particle residue common in traditional equipment, thereby significantly improving the quality and performance of the final product.

[0013] 2. This toner pulverizer with multi-stage filtration significantly reduces the adhesion of micron-sized toner through its coating, ensuring smooth material flow and simplifying cleaning. Simultaneously, the first and second rubber sleeves at key interfaces such as the grinding components and filter screens create an effective dynamic seal, fundamentally preventing powder leakage, improving the working environment, and reducing material loss and maintenance frequency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the structural breakdown of this utility model; Figure 3 This is a schematic diagram of the inclined plate and grinding assembly of this utility model; Figure 4 This is a schematic diagram of the grinding assembly structure of this utility model; Figure 5 This is a cross-sectional view of the grinding and filtering structure of this utility model; Figure 6 The structure of this utility model Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 This is a schematic diagram of the filter screen structure of this utility model.

[0015] In the diagram: 1. Grinding and filtering structure; 11. Mounting frame; 12. Inclined plate; 13. Grinding assembly; 131. Inlet ring; 132. Second rubber sleeve; 133. Upper grinding disc; 134. Connecting rod; 135. Compression spring; 136. Lower grinding disc; 137. Electromagnet; 138. Abutment block; 14. Filter screen; 141. Mounting plate; 142. Filter screen; 143. Slide plate; 144. Vibration pump; 145. Spring seat; 15. Arc-shaped hollow plate; 16. Rotating rod; 17. Drive motor; 18. First rubber sleeve; 2. Crushing structure; 21. Frame; 22. Crushing roller; 23. Gear; 24. Motor; 3. Conveying structure; 31. Conveying frame; 32. Cover plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 7 This utility model provides a technical solution: a carbon powder pulverizing device with multi-stage filtration function, which sequentially passes through four stages from top to bottom: conveying, crushing, grinding and filtering. The conveying structure 3 is located at the top of the equipment, and its conveying frame 31 is equipped with a flip-up cover plate 32, which facilitates material feeding and effectively prevents dust from overflowing. During operation, the operator opens the cover plate 32 and puts in the carbon block to be processed. The material falls naturally to the crushing structure 2 located in the middle under the action of gravity.

[0018] A pair of crushing rollers 22 are arranged in parallel inside the frame 21 of the crushing structure 2. The two rollers mesh with each other through the gears 23 at their ends. After the motor 24 starts, it drives one of the crushing rollers 22 to rotate. The two rollers rotate in opposite directions through the transmission of the gears 23. When the carbon block falls into the gap between the two rollers, it is crushed into smaller particles by strong compression and shearing. The crushed carbon powder falls evenly into the grinding and filtering structure 1 below through the bottom opening of the frame 21. The gears 23 are covered by a cover.

[0019] The mounting frame 11 of the grinding filter structure 1 is equipped with multiple spliced ​​inclined plates 12 at the top. The inclined plates 12 together form a conical guide surface, which guides the falling toner to the grinding component 13 in the center. The grinding component 13 adopts a unique electromagnetic control and elastic pressure system: the inlet ring 131 is fixed at the outlet of the inclined plate 12, and an electromagnet 137 is embedded in the symmetrically opened mounting groove at its bottom; the upper grinding disc 133 is connected to the electromagnet 137 through the connecting rod 134 in a controllable connection. The connecting rod 134 is made of ferromagnetic material and can be attracted and raised when the electromagnet 137 is energized, and lowered under the action of the compression spring 135 when the power is off. The port of the mounting groove is symmetrically fixedly connected with a stop block 138, and the stop block 138 fits and adheres to the connecting rod 134, which can limit and stabilize the connecting rod 134.

[0020] In actual operation, the control system operates cyclically according to a preset program: First, the electromagnet 137 is de-energized, and the upper grinding disc 133, under the thrust of the compression spring 135, presses against the rotating lower grinding disc 136, grinding the carbon powder between the two discs; after a grinding cycle of 10-15 seconds, the electromagnet 137 is energized, lifting and resetting the upper grinding disc 133, pausing grinding and allowing new material to enter the grinding zone; after a feeding interval of 3-5 seconds, the electromagnet 137 is de-energized again to start a new round of grinding. This intermittent working mode ensures both grinding fineness and continuous production.

[0021] The lower grinding disc 136 is rotatably sleeved on the arc-shaped hollow plate 15 via a rotating component. The drive motor 17 drives the lower grinding disc 136 to rotate at a constant speed via a rotating rod 16. The rotating rod 16 passes through the inner cavity of the arc-shaped hollow plate 15 and is fixed to the bottom of the lower grinding disc 136. The arc-shaped design of the top surface of the lower grinding disc 136 helps to evenly disperse the carbon powder into the grinding area. The second rubber sleeve 132 surrounds the gap between the upper grinding disc 133 and the entry ring 131, forming a dynamic seal to effectively prevent the leakage of micro powder.

[0022] The ground carbon powder falls onto the inclined surface of the arc-shaped hollow plate 15 and slides into the filter screen 14 installed on the side of the mounting frame 11. The filter screen 14 is elastically supported in the slot by the spring seat 145. The mounting plate 141 is provided with two layers of filter screens 142 with different mesh sizes. The upper layer is a coarse mesh filter screen and the lower layer is a fine mesh filter screen, forming a graded filtration system.

[0023] Vibration pump 144 is symmetrically installed on the side of mounting plate 141. The high-frequency vibration generated during operation is transmitted to the entire filtration system, significantly improving filtration efficiency. Qualified fine powder passes through two layers of filter screen 142 in sequence and finally falls into the main collection container from the outlet at the bottom of the mounting frame 11. Coarse particles that do not pass through the filter slide to one side along the inclined mounting plate 141 under the action of vibration and are guided into the side recycling collection box through the slide plate 143. The first rubber sleeve 18 fills the gap between the filter screen 14 and the trough, which not only ensures the free vibration of the filter screen 14, but also prevents dust from leaking from the side.

[0024] All surfaces in contact with materials are coated with a low surface energy coating, such as silicone coating, fluorine-containing nano-coating, or superhydrophobic coating. These coatings create surfaces with excellent hydrophobic and oleophobic properties, effectively reducing toner adhesion, ensuring smooth material flow, and facilitating equipment cleaning and maintenance.

[0025] To ensure operational safety and environmental cleanliness, transparent protective covers (not shown in the figure) can be installed at the bottom outlet of the mounting frame 11 and the side outlet of the filter screen 14. This allows for observation of material flow and effective control of dust diffusion. A dedicated protective structure is also provided at the connection between the vibrating pump 144 and the mounting frame 11 to prevent dust from entering the mechanical transmission parts.

[0026] This device can be fully automated via a PLC controller. The controller presets parameters such as grinding cycle and filtration time, and precisely controls the on / off sequence of the electromagnet 137, as well as the start and stop of the drive motor 17 and the vibration pump 144. This intelligent control ensures that the toner achieves a uniform grinding fineness while optimizing energy efficiency.

[0027] During operation, feeding and initial crushing During operation, first open the cover plate 32 at the top of the conveying structure 3, put the carbon block to be processed into the conveying frame 31, and the carbon block falls naturally under the action of gravity and enters the crushing structure 2 located in the middle. After starting the motor 24, the pair of crushing rollers 22 are driven to rotate in opposite directions through the gear 23 to squeeze and shear the carbon block, completing the initial crushing. The crushed carbon powder falls evenly through the bottom opening of the frame 21.

[0028] Flow guiding and fine grinding The crushed toner powder falls onto the inclined plate 12 of the grinding and filtering structure 1, and enters the inlet ring 131 of the grinding assembly 13 through its conical guide surface. During this process, the periodic up-and-down movement of the upper grinding disc 133 plays a key role in preventing clogging: when the electromagnet 137 is energized and the upper grinding disc 133 is lifted and reset, its vertical movement produces an instantaneous loosening and guiding effect on the toner powder accumulated above, effectively breaking the "bridging" or "blocking" phenomenon that the toner powder may form due to static electricity or moisture, ensuring that the toner powder can continuously and smoothly fall into the grinding cavity formed between the upper grinding disc 133 and the lower grinding disc 136 through the inlet ring 131. Secondly, the drive motor 17 drives the lower grinding disc 136 to rotate at a constant speed through the rotating rod 16, and the arc design of the top of the rotating lower grinding disc 136 can also promote the movement of toner powder, which can prevent the toner powder from clogging.

[0029] The grinding process adopts an intelligently controlled intermittent working mode: When the electromagnet 137 is de-energized, the upper grinding disc 133 is pressed down by the pushing force of the compression spring 135, and together with the rotating lower grinding disc 136, it squeezes and grinds the carbon powder. After a 10-15 second grinding cycle, the electromagnet 137 is energized, attracting the connecting rod 134 to raise and reset the upper grinding disc 133, thus pausing the grinding process. After a 3-5 second feeding interval, electromagnet 137 is de-energized again, and a new grinding cycle begins.

[0030] This periodic grinding method ensures that the toner has a uniform fineness and enables continuous production. The second rubber sleeve 132 plays a dynamic sealing role during the grinding process, effectively preventing powder leakage.

[0031] Multi-stage vibration filtration The properly ground carbon powder falls onto the inclined surface of the arc-shaped hollow plate 15 and slides into the filter screen 14 on the side of the mounting frame 11. The filter screen 14 has two layers of filter screens 142 with different mesh sizes, forming a graded filtration system. The upper layer is a coarse-mesh filter, used to intercept a small number of insufficiently ground particles; The lower layer is a fine-mesh filter to ensure that the final toner powder has the required fineness.

[0032] After the vibration pump 144 is started, the filter screen 14 generates high-frequency vibration, which significantly improves the filtration efficiency. Qualified fine powder passes through two layers of filter screen 142 in sequence and finally falls into the main collection container from the bottom outlet of the mounting frame 11; coarse particles that do not pass through the filter slide to one side along the inclined mounting plate 141 under the action of vibration and are guided into the side recycling collection box through the slide plate 143.

[0033] Anti-stick and dustproof design All surfaces in contact with materials are coated with a low surface energy coating (silicone coating, fluorine-containing nano coating, or superhydrophobic coating), which effectively reduces toner adhesion, ensures smooth material flow, and facilitates equipment cleaning and maintenance.

[0034] To ensure a safe operating environment, transparent protective covers can be installed at the bottom of the mounting frame 11 and the side outlet of the filter screen 14, which can both observe the material flow and effectively control dust diffusion.

[0035] Through multi-stage processing of crushing, grinding and filtering, the toner is processed efficiently with high particle uniformity. The entire system can be fully automated through a PLC controller, ensuring the stability and consistency of the production process.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon powder pulverizing device with multi-stage filtration function, comprising a grinding and filtering structure (1), a crushing structure (2), and a conveying structure (3) from bottom to top, characterized in that: The grinding and filtering structure (1) includes a mounting frame (11), and the ports of the mounting frame (11) are spliced ​​together with inclined plates (12), and the ports of the inclined plates (12) are provided with grinding components (13). The grinding assembly (13) includes an entry ring (131), an upper grinding disc (133), and a lower grinding disc (136) arranged from top to bottom. The bottom of the entry ring (131) is symmetrically provided with mounting grooves, and an electromagnet (137) is embedded in the mounting groove. The top of the upper grinding disc (133) is symmetrically connected with a connecting rod (134). The connecting rod (134) is slidably sleeved on the bottom of the entry ring (131), and the connecting rod (134) is made of ferromagnetic material and can attract each other with the electromagnet (137). The bottom of the connecting rod (134) is symmetrically fixedly connected with a compression spring (135). The port of the mounting groove is symmetrically fixedly connected with a stop block (138), and one end of the stop block (138) is attached to the surface of the connecting rod (134). One end of the compression spring (135) is fixedly connected to the stop block (138). The entry ring (131) is fixedly connected to the port of the inclined plate (12). A second rubber sleeve (132) is provided between the entry ring (131) and the upper grinding disc (133). An arc-shaped hollow plate (15) is movably sleeved on the surface of the lower grinding disc (136). A drive motor (17) is installed at the bottom of the arc-shaped hollow plate (15). A rotating rod (16) is fixedly connected to the output end of the drive motor (17). One end of the rotating rod (16) passes through the inner cavity of the arc-shaped hollow plate (15) and is connected to the bottom of the lower grinding disc (136). The arc-shaped end in the middle of the lower grinding disc (136) is located in the inner cavity of the upper grinding disc (133). The lower grinding disc (136) is rotatably sleeved on the arc-shaped hollow plate (15) by a rotating component.

2. The carbon powder pulverizing device with multi-stage filtration function according to claim 1, characterized in that: A slot is provided between the mounting frame (11) and the arc-shaped hollow plate (15) for the filter screen (14) to move, and the filter screen (14) is installed in the slot. A first rubber sleeve (18) is provided between the filter screen (14) and the slot.

3. The carbon powder pulverizing device with multi-stage filtration function according to claim 1, characterized in that: The crushing structure (2) includes a frame (21) fixedly connected to the top of the mounting frame (11), and crushing rollers (22) are symmetrically arranged in the inner cavity of the frame (21). One end of each crushing roller (22) is meshed with a gear (23), and a motor (24) is fixedly connected to the side of the frame (21). The output end of the motor (24) is fixedly connected to one end of any one of the crushing rollers (22).

4. A carbon powder pulverizing device with multi-stage filtration function according to claim 1, characterized in that: The conveying structure (3) includes a conveying frame (31) fixedly connected to the top of the frame (21), and a cover plate (32) is rotatably connected to the top of the conveying frame (31).

5. A carbon powder pulverizing device with multi-stage filtration function according to claim 2, characterized in that: The filter screen (14) includes a mounting plate (141). A spring seat (145) is symmetrically arranged at the bottom of the mounting plate (141), and the spring seat (145) is fixedly arranged in the groove. The inner cavity of the mounting plate (141) is provided with filter screens (142) in layers, and a sliding plate (143) is provided at one end of each layer of filter screen (142). A vibration pump (144) is symmetrically arranged on the side of the mounting plate (141). The mounting plate (141) is inclined and one end extends to the outside of the mounting frame (11).

6. A carbon powder pulverizing device with multi-stage filtration function according to claim 1, characterized in that: The surfaces of the grinding and filtering structure (1), the crushing structure (2) and the conveying structure (3) are all coated with a coating, which is any one of an organosilicon coating, a fluorine-containing nano coating and a superhydrophobic coating.

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